Guide structure of hydraulic oil cylinder

Abstract

The utility model discloses a guide structure of a hydraulic oil cylinder, which belongs to the technical field of hydraulic oil cylinders and comprises a hydraulic cylinder, a hydraulic rod is connected to the output end of the hydraulic cylinder, a mounting component is arranged at one end, far away from the hydraulic rod, of the hydraulic cylinder, and a guide mechanism is arranged on the hydraulic cylinder and the hydraulic rod and comprises a fixing ring connected to the peripheral side of the hydraulic cylinder. The fixing ring is slidably connected with two symmetrically-arranged guide rods, the ends, away from the mounting assembly, of the guide rods are connected with contact plates, the contact plates are connected with hydraulic rods, the ends, away from the mounting assembly, of the fixing ring are provided with two symmetrically-arranged contact grooves, the peripheral sides of the guide rods are connected with mounting rings A, and the ends, close to the mounting assembly, of the mounting rings A are connected with springs. The spring is connected with a mounting ring B. The mounting ring B is slidably connected with the guide rod. The hydraulic rod can be guided, the phenomenon that the hydraulic rod is bent due to the pressure of a heavy object is prevented, meanwhile, when the hydraulic cylinder is out of control, the guiding mechanism can conduct buffering action, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a guide structure of a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application occasion, and other devices are indispensable. With the development of society, the application of guide devices for hydraulic oil cylinders is becoming more and more extensive;

[0003] In the existing technology, there are problems in which the hydraulic rod of the hydraulic cylinder is bent due to external pressure during use, and there is no buffer when the hydraulic cylinder loses control, which causes stress concentration at the bent part of the hydraulic rod, and finally causes the hydraulic rod to bend and unable to move back to the initial position, resulting in damage to the hydraulic cylinder. For this reason, we propose a guide structure for the hydraulic cylinder. Summary of the invention

[0004] The purpose of the utility model is to provide a guide structure of a hydraulic cylinder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guiding structure of a hydraulic cylinder, comprising a hydraulic cylinder, a hydraulic rod connected to the output end of the hydraulic cylinder, a mounting assembly provided at one end of the hydraulic cylinder away from the hydraulic rod, a guiding mechanism provided on the hydraulic cylinder and the hydraulic rod, the guiding mechanism comprising a fixing ring connected to the outer peripheral side of the hydraulic cylinder, the fixing ring being slidably connected to two symmetrically arranged guide rods, the guide rod being connected to a contact plate at one end away from the mounting assembly, the contact plate being connected to the hydraulic rod, two symmetrically arranged contact grooves being provided at one end of the fixing ring away from the mounting assembly, a mounting ring A being connected to the outer peripheral side of the guide rod, a spring being connected to one end of the mounting ring A close to the mounting assembly, the spring being connected to a mounting ring B, the mounting ring B being slidably connected to the guide rod, a screw hole being provided on the surface of the fixing ring, and the fixing ring being detachably connected to a cleaning assembly through the screw hole.

[0006] Preferably, the cleaning assembly includes an arc plate arranged on one side of the fixing ring close to the mounting assembly, the screw hole is threadedly connected with a bolt and the bolt is threadedly connected to the arc plate, both ends of the arc plate are connected with a sleeve cleaning head, and the sleeve cleaning head is slidably connected to the guide rod.

[0007] Preferably, the installation assembly includes a mounting plate connected to the hydraulic cylinder, and a plurality of uniformly distributed mounting holes are formed at the outer end of the mounting plate.

[0008] Preferably, one end of the guide rod away from the contact plate is detachably connected with a limiting plate, and a protective pad is connected to one end of the limiting plate close to the fixed ring.

[0009] Preferably, the spring is arranged outside the guide rod.

[0010] Preferably, the outer diameter of the mounting ring B is matched with the inner diameter of the contact groove.

[0011] Preferably, both ends of the socket cleaning head are chamfered.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The hydraulic cylinder, the hydraulic rod, the guiding mechanism and the installation assembly are provided, and the hydraulic cylinder can be installed at a predetermined position through the installation assembly. Next, the hydraulic cylinder works. At this time, the hydraulic cylinder drives the hydraulic rod to move upward, and then drives the contact plate and the guide rod to move upward. At this time, the guide rod slides with the fixed ring. At this time, the guide rod and the contact plate guide the hydraulic rod. When the hydraulic cylinder lifting the heavy object gets out of control, at this time, the hydraulic rod moves downward instantly, and at this time, the guide rod moves downward. At this time, the guide rod drives the mounting ring A, the spring and the mounting ring B to move downward. When the mounting ring B enters the contact groove, at this time, the spring generates a compression action for buffering. The utility model realizes the guiding action on the hydraulic rod, prevents the hydraulic rod from bending due to the pressure of the heavy object, and at the same time, when the hydraulic cylinder gets out of control, the guiding mechanism can perform a buffering action, improving the safety.

[0014] 2. The cleaning assembly is provided, and during the operation of the guide rod, at this time, the guide rod also slides with the socket cleaning head. At this time, the socket cleaning head scrapes the dust on the surface of the guide rod, reducing the friction force during the operation of the guide rod and improving the stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a front view structure schematic diagram of the utility model;

[0017] Figure 3 is a schematic diagram of the guiding mechanism structure of the utility model;

[0018] Figure 4 is a schematic diagram of the cleaning assembly structure of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the installation component of the present utility model.

[0020] In the figure: 1, hydraulic cylinder; 2, hydraulic rod; 3, guiding mechanism; 301, fixed ring; 302, screw hole; 303, guide rod; 304, contact plate; 305, mounting ring A; 306, spring; 307, mounting ring B; 308, contact groove; 309, limiting plate; 310, protective pad; 4, installation component; 401, mounting plate; 402, mounting hole; 5, cleaning component; 501, arc plate; 502, socket cleaning head; 503, bolt. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a guiding structure of a hydraulic cylinder, including a hydraulic cylinder 1, a hydraulic rod 2 is connected to the output end of the hydraulic cylinder 1, an installation component 4 is arranged at one end of the hydraulic cylinder 1 away from the hydraulic rod 2, a guiding mechanism 3 is arranged on the hydraulic cylinder 1 and the hydraulic rod 2, the guiding mechanism 3 includes a fixed ring 301 connected to the outer peripheral side of the hydraulic cylinder 1, two symmetrically arranged guide rods 303 are slidably connected to the fixed ring 301, a contact plate 304 is connected to one end of the guide rod 303 away from the installation component 4, the contact plate 304 is connected to the hydraulic rod 2, two symmetrically arranged contact grooves 308 are opened at one end of the fixed ring 301 away from the installation component 4, a mounting ring A 305 is connected to the outer peripheral side of the guide rod 303, a spring 306 is connected to one end of the mounting ring A 305 close to the installation component 4, the spring 306 is connected to a mounting ring B 307, the mounting ring B 307 is slidably connected to the guide rod 303, screw holes 302 are opened on the surface of the fixed ring 301, and a cleaning component 5 is detachably connected to the fixed ring 301 through the screw holes 302.

[0023] Specifically, the cleaning component 5 includes an arc plate 501 disposed on one side of the fixed ring 301 close to the mounting component 4. A bolt 503 is threadedly connected to the screw hole 302 and the bolt 503 is threadedly connected to the arc plate 501. Both ends of the arc plate 501 are connected with socket cleaning heads 502, and the socket cleaning heads 502 are slidably connected to the guide rods 303. The mounting component 4 includes a mounting plate 401 connected to the hydraulic cylinder 1. A plurality of uniformly distributed mounting holes 402 are formed in the outer end of the mounting plate 401. One end of the guide rod 303 away from the contact plate 304 is detachably connected with a limiting plate 309, and a protective pad 310 is connected to one end of the limiting plate 309 close to the fixed ring 301. The spring 306 is disposed outside the guide rod 303. The outer diameter dimension of the mounting ring B307 is matched with the inner diameter dimension of the contact groove 308. Chamfering treatments are performed on both ends of the socket cleaning head 502.

[0024] Working principle: The hydraulic cylinder 1 is installed at a predetermined position through the mounting component 4. Next, the hydraulic cylinder 1 operates. At this time, the hydraulic cylinder 1 drives the hydraulic rod 2 to move upward, thereby driving the contact plate 304 and the guide rod 303 to move upward. At this time, the guide rod 303 slides with the fixed ring 301. At this time, the guide rod 303 and the contact plate 304 guide the hydraulic rod 2. When the hydraulic cylinder 1 loses control when lifting a heavy object, at this time, the hydraulic rod 2 instantaneously moves downward. At this time, the guide rod 303 moves downward. At this time, the guide rod 303 drives the mounting ring A305, the spring 306 and the mounting ring B307 to move downward. When the mounting ring B307 enters the contact groove 308, at this time, the spring 306 generates a compression action for buffering. During the entire process of the guide rod 303 running, at this time, the guide rod 303 also slides with the socket cleaning head 502. At this time, the socket cleaning head 502 scrapes the dust on the surface of the guide rod 303, reducing the friction force during the running process of the guide rod 303 and improving the stability. This utility model realizes the guiding action on the hydraulic rod 2, preventing the hydraulic rod 2 from being bent due to the pressure of the heavy object. At the same time, when the hydraulic cylinder 1 gets out of control, the guiding mechanism 3 can perform a buffering action, improving the safety.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A guide structure for a hydraulic cylinder, comprising a hydraulic cylinder (1), characterized in that: The output end of the hydraulic cylinder (1) is connected to a hydraulic rod (2); an installation assembly (4) is provided at one end of the hydraulic cylinder (1) away from the hydraulic rod (2); a guide mechanism (3) is provided on the hydraulic cylinder (1) and the hydraulic rod (2); the guide mechanism (3) comprises a fixing ring (301) connected to the outer peripheral side of the hydraulic cylinder (1); the fixing ring (301) is slidably connected to two symmetrically arranged guide rods (303); the guide rods (303) are connected to a contact plate (304) at one end away from the installation assembly (4); the contact plate (304) is connected to the hydraulic rod (2); the fixing ring (301) is slidably connected to two symmetrically arranged guide rods (303); The fixed ring (301) is provided with two symmetrically arranged contact grooves (308) at one end away from the mounting assembly (4); the outer peripheral side of the guide rod (303) is connected to a mounting ring A (305); the mounting ring A (305) is connected to a spring (306) at one end close to the mounting assembly (4); the spring (306) is connected to a mounting ring B (307); the mounting ring B (307) is slidably connected to the guide rod (303); a screw hole (302) is provided on the surface of the fixed ring (301); and the fixed ring (301) is detachably connected to a cleaning assembly (5) via the screw hole (302).

2. The guide structure of a hydraulic cylinder according to claim 1, characterized in that: The cleaning assembly (5) comprises an arc plate (501) arranged on a side of the fixing ring (301) close to the mounting assembly (4); the screw hole (302) is threadedly connected with a bolt (503) and the bolt (503) is threadedly connected to the arc plate (501); both ends of the arc plate (501) are connected with a sleeve cleaning head (502); and the sleeve cleaning head (502) is slidably connected to the guide rod (303).

3. The guide structure of a hydraulic cylinder according to claim 1, characterized in that: The mounting assembly (4) comprises a mounting plate (401) connected to the hydraulic cylinder (1), and a plurality of evenly distributed mounting holes (402) are formed at an outer end of the mounting plate (401).

4. The guide structure of a hydraulic cylinder according to claim 1, characterized in that: One end of the guide rod (303) away from the contact plate (304) is detachably connected to a limit plate (309), and one end of the limit plate (309) close to the fixing ring (301) is connected to a protective pad (310).

5. The guide structure of a hydraulic cylinder according to claim 1, characterized in that: The spring (306) is arranged outside the guide rod (303).

6. The guide structure of a hydraulic cylinder according to claim 1, characterized in that: The outer diameter of the mounting ring B (307) is matched with the inner diameter of the contact groove (308).

7. The guide structure of a hydraulic cylinder according to claim 2, characterized in that: Both ends of the sleeve cleaning head (502) are chamfered.

Images